It's rare to see Conservative in panic (6)
I believe the answer is:
scarce
'it's rare' is the definition.
('scarce' can be similar in meaning to 'rare')
'conservative in panic' is the wordplay.
'conservative' becomes 'c' (abbreviation commonly used in UK politics).
'in' means one lot of letters goes inside another.
'panic' becomes 'scare' ('scare' can be a synonym of 'panic').
'c' going within 'scare' is 'SCARCE'.
'to see' is the link.
(Other definitions for scarce that I've seen before include "Insufficient to meet demand" , "Wanting" , "Not enough to satisfy demand" , "Hard to get" , "Rare shock Conservative getting in" .)